and this is where I get stuck, although I'm sure I'm missing something obvious. I tried pulling out the quarter and messing with it a bit like that. But at the end of the day it's those powers of x which are confusing me

and this is where I get stuck, although I'm sure I'm missing something obvious. I tried pulling out the quarter and messing with it a bit like that. But at the end of the day it's those powers of x which are confusing me